A465 schemes 'double the cost' of UK dualling

22/02/2021 | RHODRI CLARK

The estimated construction cost per km of the Welsh Government’s recent A465 dualling contract is more than double that of other comparable current schemes in the UK.

The Government says the high cost is down to site conditions rather than its use of the Mutual Investment Model (MIM), a new form of Public Private Partnership.

For dualling schemes on the A30 Chiverton-Carland Cross in Cornwall, the A6 Dungiven-Drumahoe in Northern Ireland and the A9 Luncarty-Pass of Birnam in Scotland, cost per km ranges from £8.6m to £21.6m. Their average cost per km is £12.8m.

The A465 Dowlais-Hirwaun contract, awarded last autumn, has an estimated construction cost of £33.3m per km, 160% higher than the average for the schemes in England, Northern Ireland and Scotland.

The cost of the A465 Gilwern-Brynmawr dualling, where completion has been delayed by topographical and other complications, is even higher, at £41.5m per km.

The Dowlais-Hirwaun construction consortium will cover the scheme’s estimated £590m cost. After completion in 2025, it will operate the road for 30 years and receive annual service payments from the Government totalling £1.14bn, excluding VAT and inflation.

Asked whether the MIM had resulted in bidders including large risk allowances in cost estimates, a government spokesman said risk apportionment had formed a large part of discussions with bidders during procurement.

‘We are satisfied that using the MIM we have achieved optimum risk distribution and placed risk with the party best placed to manage it. The scope of site investigations undertaken was developed in conjunction with bidders, and findings were made available to them in developing their tenders.’

Asked what benchmarking was undertaken, he said: ‘Simple cost-per-kilometre comparisons between different schemes do not take into account the differences between the scope of each scheme and site conditions.’

Both of the current A465 dualling schemes were ‘significantly challenging and complex projects,' he added. 

Also see

Highways InProfile

latest magazine issue
Highways jobs

Electrical Design Engineer

Grade 9 £34,314 to £37,938 - Grade 10 £37,035 to £40,476 - Grade 11 £39,513 to £43,693 - Grade 12 £42,708 to £46,731 p.a.
The Construction Consultancy Services (CCS) team provide client-side construction consultancy services across a range of professional disciplines to d Durham
Recruiter: Durham County Council

Park Operations Assistant - Thorndon Country Park

Up to £12540.50 per annum
This is a permanent, part time position on an annualised hours contract. This means you will be contracted to work a minimum of 964.59 hours per yea England, Essex, Brentwood
Recruiter: Essex County Council

Principal Transport Planner (Strategy)

£46,731-£49,764
We are looking for an experienced professional to join North Northamptonshire Council as a Principal Transport Planner (Strategy). Sheerness House, 41 Meadow Road, Kettering moving to Haylock House, Kettering Parkway, Kettering NN15 6EY, United Kingdom
Recruiter: North Northamptonshire Council

Highways Capital Delivery Manager

£50,788 - £52,805
To be responsible for the implementation of Welsh Government’s Renewal and Upgrade programme. Baglan, Port Talbot
Recruiter: South Wales Trunk Road Agent

Senior Engineer x 2

£47,532 –£55,620 per annum
Our people are deeply committed to providing excellent services to our residents, doing all we can to make lives as good as they can be. Hounslow (City/Town), London (Greater)
Recruiter: Hounslow London Borough Council

Senior Highways Engineer

£50,754 – £53,607 per annum
Our people are deeply committed to providing excellent services to our residents, doing all we can to make lives as good as they can be. Hounslow (City/Town), London (Greater)
Recruiter: Hounslow London Borough Council

Highways Capital Lead

£47,754 - £50,788
To be responsible for management of the Regional Highway Capital Delivery Teams South Wales
Recruiter: South Wales Trunk Road Agent

Senior Development Management Engineer

£37,938 - £44,711
In line with our One Coventry Values, we want to ensure that our communities are represented across our workforce Coventry, West Midlands
Recruiter: Coventry City Council

Head of Highways

£66,366 - £85,284 pa
Highway Operations is a large division within the Planning, Growth & Infrastructure. Enfield (City/Town), London (Greater)
Recruiter: Enfield London Borough Council

Director Highways, Transport & Waste Management

up to £120k
There for Nottinghamshire. There for each other. There for you. Nottinghamshire
Recruiter: Nottinghamshire County Council

Director of Highways and Transportation

£126,909
We’re seeking a dynamic and innovative leader to spearhead our Highways and Transportation services. Essex
Recruiter: Essex County Council

Senior Structures Technician

£32,654 - £36,124 plus circa £2000 - £4000 OT (variable
To lead on the planning, delivery and reporting of the highway structures General Inspection programme. Baglan, Port Talbot
Recruiter: South Wales Trunk Road Agent

Assistant Director of Place Operations

£85,962 to £93,267
Bury is a proud and prosperous borough Bury, Greater Manchester
Recruiter: Bury Council

Career Grade Transport Planner (Carer Grade 6-8)

Grade 06 (£29,093 - £32,654) TO Grade 08 (£37,938 - £41,511)
This is a fantastic opportunity to work for a forward thinking and dynamic transport authority located in the heart of the North West Warrington, Cheshire
Recruiter: Warrington Borough Council

Principal Performance and Assurance Manager

£Competitive
We have an exciting opportunity for a highly motivated Principal Performance and Assurance Manager to join our Senior Management Team SBIM Avonmouth, Bristol
Recruiter: Amey

Principal Construction Manager

£Competitive
We are excited to offer a fantastic opportunity for a Permanent Principal Construction Manager to join our dynamic Area 12 West Yorkshire
Recruiter: Amey

Electrician

£Competitive
We are excited to offer a fantastic opportunity for two Permanent Electricians Tingley, Wakefield
Recruiter: Amey

Principal Engineer – Structures Capital Delivery

£43,693 - £47,754
To act as one of the Agent's technical experts for highway structures schemes and related issues South Wales
Recruiter: South Wales Trunk Road Agent

Senior Engineer Programme Management

£36,124 - £39,513
To support the Principal Engineer ensuring effective co-ordination, programming and contract administration. South Wales
Recruiter: South Wales Trunk Road Agent

Senior Engineer – Structures Delivery

£36,124 - £39,513
To support the Principal Engineer Structures (Capital Works) and deputise if necessary South Wales
Recruiter: South Wales Trunk Road Agent
SUBSCRIBE NOW

Latest Video

Subscribe to Highways today to ensure you keep your finger on the pulse of everything happening in the UK road network throughout the year.

SUBSCRIBE NOW